Paralampas, DUNCAN & SLADEN, 1882

GENUS PARALAMPAS DUNCAN & SLADEN, 1882 View in CoL

Emended diagnosis: Small cassidulids with oval and inflated test; oral region of test slightly concave. Petals long (petal III longest), broad; outer column bowed, a and b columns of pore-pairs with equal number of pores; poriferous zone wide, lacking primary tubercles. Anterior paired petals tulip-shaped. Plates immediately after posterior petals squared and then widened, greatly increasing ambulacral width. Periproct equant, framed by seven or eight plates. About seven or eight interambulacral plates between basicoronal plate 5 and adoral base of periproct. Interambulacrum 5 naked zone narrow; pits small or absent. Outer column of phyllodes with four to seven phyllopores per half; occluded plates few or absent. Bourrelets poorly developed or pointed.

Included species based on present analysis: Pa. pileus (type species), Pa. platisternus and Pa. rancureli .